Seal-lock



M66613 R. J. CANNON 86 J. M. WARD.

SEAL LOCK.

N0. 276,666. 6 Patented May 1,1883.

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UNITED STATES PATENT OFFICE.

ROBERT J. CANNON AND JAMES M. WARD, OF DES MOINES, IOVVA'.

SEAL-LOG K.

SPECIFICATION forming. part of Letters Patent N0. 276,666, dated May 1, 1883,

' Application filed September 25, 1882. V (ModeL) The object of our invention is to facilitate the application and improve the operation of locks on sliding doors.

It consists in forming and combining a revolving plate or bolt, 2. hasp, and staples with a sliding door in cars or buildings, as hereinalter fully set forth, in such a manner that cleats, shoulders, and obstructions to a sliding motion on the inside or back of the door can be dispensed with and the bolt projected through the door and-fixed against the doorjam-b to lock and seal the door.

Figure l of our accompanying drawings is a face "iew of a section of a car-door and doorjamb, showing our lock applied and in a locked and sealed position. Fig. 2 is a longitudinal section of Fig. 1. Fig. 3 is a sectional view of the door, showing the bolt and hasp in an unlocked position. Fig. 4 is a transverse section of the door and jamb, and shows the bolt projected inward to engage the jamb. Jointly considered, these figures clearly illustrate the construction, application, and operation of our complete invention.

A represents a sliding car-door, and B one of the jambs or sides of the doorway overlapped by the door.

0 is a metal plate and the base-piece of our look. It is flat and perforated, and adapted to be fixed against the outside flat surface of a door by means of rivets or screw-bolts. It may be wrought. or cast metal and vary in size as desired.

d is a slot in the longitudinal center and lower portion of the base-piece G. g

d" is a corresponding slot through the door A.

a f is a metal bolt, in the form of an eccentric, pivoted in the slot 11 in the door by means of a screw-bolt, g, or in any suitable way, so that it canbe partially revolved in the slots 0! and d, as required, to throw it in and out of contact with the door-jamb B.

' h is a perforated projection on the outside and upper corner of the pivoted bolt d.

m is a hasp adjustably connected with the projection h of the bolt.

, n is a staple formed integral with or fixed to the top portion of the base-piece O, in such a manner that the hasp m can be passed over it and secured thereto by means of a key, padlock, or in any suitable way.

1' isa second staple or projection, having an eye formed integral with or fixed to the basepiece and door in such a manner that it will extend through the hasp and admit the insertion of a seal, as clearly shown in Figs. 1 and 2.

In the practical use of our lock thus formed and applied, when the door is closed, we simply revolve the pivoted bolt upward and inward by lifting the hasp and placing it over the fixed staples, and there secure the hasp and bolt in fixed positions by means of a key, as shown in Fig. 1, or in any suitable way, so as to retain that portion of the bolt that projects inward against the side of the door way or jamb, as shown in Fig. 4. To unlock we simply free the hasp from the staples and turn it down, to thereby withdraw the bolt from the jamb and into the slot inthe door, as clearly shown inFig. 3, and as required, to allow the door to be moved laterally in its bearings s 8 relative to the doorway.

By forming a notch,f, in the under side and edge of the pivoted boltf, as shown in Fig. 2, it is adapted to serve as a latch to engage a bar or pin, f, that projects from the door post or jamb, and to thereby aid in fastening the door more securely.

We are aware that a perforated drop-piece has been pivoted in the slot of a case and the case fixed over a coinciding slot in the side of a car and a perforated lug fixed to the sliding door in such a manner that the perforated drop-piece could be projected through the coinciding slots of the case and siding to prevent the door from sliding, and locked by means of the coinciding perforations in the drop-piece and the fixed lug; but our device for locking and sealing sliding doors is constructed in such a manner that all its parts can be fixedto and carried by the door, so that there will be no need of fixing a separate lug, cleat, or projection, and obstruction of any kind upon the door or siding to form part of the look.

We claim as our invention- 1. The plate 0, having a slot, d, and staple n, the bolt f h, having a hasp hinged thereto,

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and a sliding door having a slot coinciding I to a sliding door having a slot, 01, the bolt 7 with the slotin the said plate 0, arranged h, having a hasp hinged thereto and a notch, and combined substantially as shown and def, in its edge, and the barf, fixed to the doorscribed, for the purposes set forth. way frame or jamb of a car or building, ar- 15 5 2. A sliding door having a slot, d, the plate ranged and combined substantially as shown 0 (I, having staples n and r, the boitf h, havand described, for the purposes specified. ing a hasp hinged thereto, and a sealing de- 'ROBERT J. CANNON.

vice adapted to fasten to theetaple 7', arranged JAMES M. WARD. and combined substantially as shown and de- 1o scribed, for the purposes specified.

3. The plate 0 (I, having a staple, n, fixed Witnesses THOMAS G. ORWIG, I GEO. F. HENRY. 

